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3 years ago

please help with question 3, the diagram is in question 2, my teacher wasnt any help and I missed the lesson :/

Mathematics

1 answer:

quester [9]3 years ago

3 0

Answer:

<2 = 116 degrees

Step-by-step explanation:

alright so if angle 1 is 64 and you need to find angle 2 you gotta think about whats similar between them. They're both on the same line(railroad) and a straight line is 180 degrees. So now with this info all u gotta do is subtract 180-64 to get 116

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Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm. What is Rich's percent error in this c

Hitman42 [59]

Answer:

0.9%

Step-by-step explanation:

We have been given that Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm.

We will use percentage error formula to solve our given problem.

$\text{Percentage error}=\frac{\text{Experimental value-Actual value }}{\text{Actual actual}}\times 100$

$\text{Percentage error}=\frac{80.7-80}{80}\times 100$

$\text{Percentage error}=\frac{0.7}{80}\times 100$

$\text{Percentage error}=0.00875\times 100$

$\text{Percentage error}=0.875\approx 0.9$

Therefore, Rich's percent error in calculation is 0.9%.

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3 years ago

Which gives the correct values for points A, B, C, and D?

beks73 [17]

Answer:

The correct answer for this problem is the 2nd one because all you have to do is count how far each one is from -1 and -2

Step-by-step explanation:

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SCORPION-xisa [38]

Divide 7 into 9 and if you have a calculator it equals 0.77 repeating

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72.1 divided by 7 Estimate the quotient

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WHAT IS THE VALUE OF x IN CENTIMETERS A. 30cm B. 8cm C. 10.8cm D.22.5cm

Katarina [22]

Answer:

D)22.5cm

CB/BA=HG/13.5

CB=15cm,BA=9cm,HG=x and GF=13.5

15/9=x/13.5(divided by 13.5both sides)

x=22.5cm

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3 years ago

please help with question 3, the diagram is in question 2, my teacher wasnt any help and I missed the lesson :/​

please help with question 3, the diagram is in question 2, my teacher wasnt any help and I missed the lesson :/